接触

In this paper, a numerical procedure is developed to study the influence of the creep deformation on the separation between concrete slab and cushion layer in high CFRD.

采用基于直接约束算法的接触力学分析方法模拟了混凝土面板和堆石体之间的接触关系。

Making the full use of the theoretical knowledge of FEA,contact mechanics and friction wear,and integrating with the research of other domestic and international scholar. Starting with analyzing working characteristics of journal bearing of roller cone bit, we finished the contact FEA of the journal bearing and the thrust bearing, using ANSYS software. The tolerance ranges of journal bearing of a roller cone bit are specially studied.

本文利用有限元、接触力学和摩擦学理论知识，同时结合国内外其它学者的研究，从分析牙轮钻头滑动轴承的工作特性入手，利用软件ANSYS完成了牙轮钻头中大、小轴承及止推轴承的接触有限元分析工作，对牙轮钻头滑动轴承的尺寸公差的取值，进行了专门的研究和探讨。

In order to prolong the service life of roller bearing, a deep end-cavity roller is applied to roller bearing of cone bits.

国内现有牙轮钻头滚动轴承多采用短圆柱滚子轴承结构，滚子边缘处存在应力集中现象，使得轴承接触表面极易发生疲劳破坏，为提高牙轮钻头滚动轴承抗接触疲劳寿命，提出在牙轮钻头滚动轴承中采用凹端圆柱滚子的方案。

In China, the roller bearing cone bit is now equipped with short cylindrical roller, which has stress centralization on the edge, and it easily causes fatigue failure on the contact area.

国内现有牙轮钻头滚动轴承多采用短圆柱滚子轴承结构，滚子边缘处存在应力集中现象，使得轴承接触表面极易发生疲劳破坏，为提高牙轮钻头滚动轴承杭接触疲劳寿命，提出在牙轮钻头滚动轴承中来用凹端圆柱滚子的方案。

In China, the roller bearing cone bit is now equipped with short cylindrical roller, which has stress centralization on the edge, and it easily causes fatigue failure on the contact area.

国内现有牙轮钻头滚动轴承多采用短圆柱滚子轴承结构，滚子边缘处存在应力集中现象，使得轴承接触表面极易发生疲劳破坏，为提高牙轮钻头滚动轴承抗接触疲劳寿命，提出在牙轮钻头滚动轴承中采用凹端圆柱滚子的方案。

A new technology of controllable dynamic hybrid DC contactor was developed based on the functional advantages of fully-controlled power electronic switch and DC contactor.

基于全控型电力电子开关与直流接触器的性能优势互补，开发了一种动态行为可控的混合型直流接触器新技术。

After the reason that contactor often mangled before certain master hook control system was alternated was analyzed,SDMK1 switch replacing contactor was presented.

分析了某主钩控制系统改造前时接触器经常损坏的原因，提出用SDMK l开关取代接触器进行天车控制系统改造。

Additionally, cross section curve of helix wire, contact radius, clearance angle, width and ratio in wires same layer were obtained.

为了掌握轴向载荷下螺旋钢丝的变形特性以合理设计钢丝绳，推导了螺旋钢丝轴应变显式表达式，给出了螺旋钢丝截面曲线表达式和同层螺旋钢丝正好满足接触时钢丝的半径及接触半径、间隙角、间隙值和间隙率表达式。

In order to design reliable wire ropes by investigating the deformation characteristics of wires helix, axial strain's explicit expressions and radius' expressions of wires helix were deduced in which wires were bearing axial load and just touching each other. Additionally, cross section curve of helix wire, contact radius, clearance angle, width and ratio in wires' same layer were obtained.

为了掌握轴向载荷下螺旋钢丝的变形特性以合理设计钢丝绳，推导了螺旋钢丝轴应变显式表达式，给出了螺旋钢丝截面曲线表达式和同层螺旋钢丝正好满足接触时钢丝的半径及接触半径、间隙角、间隙值和间隙率表达式。

Anthropologists divided culture into two broad categories: contact culture and the non-contact culture.

人类学家把文化大致分为两大类：接触文化和非接触文化。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。